CN104072093A - Preparation of arsenic oxide building material and recycling application of arsenic desorbing liquid - Google Patents
Preparation of arsenic oxide building material and recycling application of arsenic desorbing liquid Download PDFInfo
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- CN104072093A CN104072093A CN201410300120.3A CN201410300120A CN104072093A CN 104072093 A CN104072093 A CN 104072093A CN 201410300120 A CN201410300120 A CN 201410300120A CN 104072093 A CN104072093 A CN 104072093A
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Abstract
The invention discloses preparation of an arsenic oxide building material and recycling application of an arsenic desorbing liquid, and relates to the technical field of inorganic non-metal material preparation and environment protection and remediation. By adopting process procedures of absorption, enrichment, inert wrapping and compression sintering, an arsenic multibasic oxide material can be prepared on the basis that the arsenic desorbing liquid is recycled and utilized, the prepared arsenic multibasic oxide material can be directly used as a building material and can be also used as a raw material for preparing building materials for meeting different requirements, and meanwhile the difficulty that the arsenic desorbing liquid is hard to enrich or recycle, and particularly the difficulty of secondary arsenic pollution caused by arsenic multibasic oxide waste, is solved.
Description
Technical field
The present invention relates to ceramic preparation and environment protection and recovery technique field, be specifically related to a kind of preparation of oxide compound material of construction and recycle of arsenic desorption liquid containing arsenic.
Background technology:
Arsenic is distributed widely in atmosphere, water, soil, rock and organism.In natural water, the arsenic of dissolving, generally with inorganic arsenic hydrochlorate (AsO
4 3-), arsenite (AsO
3 3-) form or exist with methylated arsenic compound form.At present, in the surface water of many countries and regions, found arsenic pollution.In Inner Mongol of China, the ground such as Xinjiang, Taiwan, in drinking-water arsenic content in some areas up to 0.2-2.0mg/L.
After absorption method or ion-exchange purification processing, waste water can be realized qualified discharge, but the consideration for the recycling of economic aspect and material, need carry out desorption and regeneration to sorbing material and ion exchange resin, at this time will produce the arsenic desorption liquid of high density, arsenic desorption liquid how safety, economic processing, to meet society and economic requirement, becomes the problem that needs are properly settled already.Particularly how to avoid under the prerequisite of arsenic secondary pollution, realization is turned waste into wealth, the hot research direction that researcher need be considered especially.
Basic oxide (calcium oxide, magnesium oxide) can absorb the arsonium ion in the aqueous solution, to play the object of enriching and recovering.But, containing waste material oxidizing roasting meeting under 600-850 ° of C of arsenic, make wherein more than 40% arsenic volatilization, cause secondary pollution, this has just restricted the exploitation containing arsenic product.Therefore adopt the processing method of simple absorption, enrichment+calcining, be difficult to guarantee containing the chemical stability of arsenic product and the harmless processing of arsenic desorption liquid.
How to research and develop a kind of recovery, enrichment arsenic element, be applicable to that industry is promoted and stable chemical nature containing arsenic oxide material; under the prerequisite of harmless processing that realizes arsenic desorption liquid; realization is turned waste into wealth, and is an important directions in ceramic preparation and environment protection and recovery technique field.
Background technology
Referring to Fig. 1-Fig. 6, this embodiment is by the following technical solutions: after basic oxide absorb the arsonium ion in enrichment desorption liquid, the silicon oxide layer of coated inertia, thereby obtain stable multivariant oxide material, by the material of acquisition suppress, sintering processes obtains final material of construction.
The described oxide compound material of construction containing arsenic, basic oxide used can be calcium oxide, magnesium oxide.
The described oxide compound material of construction containing arsenic, by the method for the silicon oxide layer of coated inertia, obtains the multivariant oxide material of stable in properties by the precipitation after the arsonium ion absorbing in enrichment desorption liquid.
The described oxide compound material of construction containing arsenic, the multivariant oxide material of coated inertia silicon oxide layer is passed through to simple compacting, sintering, can obtain the material of construction of the above intensity of intensity 40 MPa, can, directly as a kind of material of construction, also can be used as the material of construction that a kind of raw material preparation meets different demands.
The described preparation of oxide compound material of construction and the recycle method of arsenic desorption liquid containing arsenic, by absorbing, enrichment, inertia are coated, the technical process of compacting sintering, can, on the basis of recycling of realizing arsenic desorption liquid, obtain a kind of multivariant oxide material of construction containing arsenic.
The described preparation of oxide compound material of construction and the recycle method of arsenic desorption liquid containing arsenic, is characterized in that, concrete preparation process is as follows:
First, by arsenic concentration, be the arsenic desorption liquid that 15-30 mg/L, pH value are 10-12, with calcium oxide or magnesium oxide absorb, enrichment.The solid-liquid contact mode absorb, enrichment process adopting can be and is uniformly mixed or fixed bed contact, and enrichment time is 24-48 h.Secondly, by the silicon oxide layer of the coated inertia of certain solution ratio, toward the tetraethoxy ethanolic soln that adds successively the ammoniacal liquor of 4-6 times of volume ethanol, 1/3-1/2 volume and the 50-70% of 100:15 volume in the calcium oxide of 7-9 wt% or magnesium oxide aqeous suspension, stir 10-20 h, after washing, under 60-90 ° of C, be dried 6-12 h.Finally, the multivariant oxide powder of acquisition is suppressed with the mould of different length-to-diameter ratios, at 800-1100 ° of C sintering, obtained final block material of construction.
The described preparation of oxide compound material of construction and the recycle method of arsenic desorption liquid containing arsenic, is characterized in that the absorption of arsenic element, enrichment process, the arsonium ion of every gram of curable 1.2-2 mg of basic oxide.
The described preparation of oxide compound material of construction and the recycle method of arsenic desorption liquid containing arsenic, it is characterized in that, this preparation and arsenic are recycled process, and the raw material adopting has: calcium oxide, magnesium oxide, tetraethoxy, dehydrated alcohol, ammoniacal liquor and secondary deionized water.
The described preparation of oxide compound material of construction and the recycle method of arsenic desorption liquid containing arsenic, it is characterized in that, the multivariant oxide obtaining also can be toward wherein adding other oxide component, can obtain the material of construction of calcium base, magnesium base, or mix other raw materials as a kind of raw material, be prepared into the material of construction such as cement, glass.
Principle of design of the present invention: basic oxide (calcium oxide, magnesium oxide) can absorb the arsonium ion in the aqueous solution, to play the object of enriching and recovering.But, containing waste material oxidizing roasting meeting under 600-850 ° of C of arsenic, make wherein more than 40% arsenic volatilization, cause secondary pollution.Adopt to absorb enrichment, inertia is coated and the technical process of compacting sintering, what make that arsenic element can be stable is wrapped in multivariant oxide material, has avoided the secondary pollution of arsenic element, obtains the multivariant oxide material of construction of calcium base, magnesium base simultaneously.
The present invention has following beneficial effect: it passes through to absorb enrichment, inertia is coated and the technical process of compacting sintering, can be on the basis of recycling of realizing arsenic desorption liquid, obtain a kind of multivariant oxide material containing arsenic, what obtain can be directly as material of construction containing arsenic oxide material, also can be used as the material of construction that a kind of raw material preparation meets different demands, solved the difficult problem that arsenic desorption liquid is difficult to enrichment, recycling, an arsenic secondary pollution difficult problem of particularly bringing containing arsenic multivariant oxide waste residue simultaneously.
The invention has the advantages that:
1, the present invention adopts absorption enrichment-inertia coated---the technical process of compacting sintering, final material of construction easy and simple to handle, can to obtain different macro-sizes.
2, the present invention has realized enrichment, the recovery of arsonium ion in arsenic desorption liquid, and the alkali lye after enrichment also, as the desorption liquid of sorbent material or ion exchange resin desorption, has lowered energy consumption and cost.
3, the present invention adopts silicon oxide inertia coated, has avoided the secondary pollution of arsenic, has realized turning waste into wealth truly.
4, the present invention is on the basis of harmless processing of realizing arsenic desorption liquid, develop calcium base, the magnesium base material of construction with commercial value, can be easily in the end compacting sintering technique add multiple coupler and other oxide components, thereby obtain the material of construction with different mechanical properties, also can be used as a kind of feed composition, be added in the material system of cement preparation, glass preparation, obtain the material of construction such as cement, glass.
Summary of the invention
The object of this invention is to provide a kind of preparation of oxide compound material of construction and recycle of arsenic desorption liquid containing arsenic, it is by absorbing enrichment, inertia is coated the technical process with compacting sintering, can be on the basis of recycling of realizing arsenic desorption liquid, obtain a kind of multivariant oxide material containing arsenic, what obtain can be directly as material of construction containing arsenic oxide material, also can be used as the material of construction that a kind of raw material preparation meets different demands, solve arsenic desorption liquid simultaneously and be difficult to enrichment, a difficult problem of recycling, an arsenic secondary pollution difficult problem of particularly bringing containing arsenic multivariant oxide waste residue.
In order to solve the existing problem of background technology, the present invention is by the following technical solutions: after basic oxide absorb the arsonium ion in enrichment desorption liquid, the silicon oxide layer of coated inertia, thereby obtain stable multivariant oxide material, by the material of acquisition suppress, sintering processes obtains final material of construction.
The described oxide compound material of construction containing arsenic, basic oxide used can be calcium oxide, magnesium oxide.
The described oxide compound material of construction containing arsenic, by the method for the silicon oxide layer of coated inertia, obtains the multivariant oxide material of stable in properties by the precipitation after the arsonium ion absorbing in enrichment desorption liquid.
The described oxide compound material of construction containing arsenic, the multivariant oxide material of coated inertia silicon oxide layer is passed through to simple compacting, sintering, can obtain the material of construction of the above intensity of intensity 40 MPa, can, directly as a kind of material of construction, also can be used as the material of construction that a kind of raw material preparation meets different demands.
The described preparation of oxide compound material of construction and the recycle method of arsenic desorption liquid containing arsenic, by absorbing, enrichment, inertia are coated, the technical process of compacting sintering, can, on the basis of recycling of realizing arsenic desorption liquid, obtain a kind of multivariant oxide material of construction containing arsenic.
The described preparation of oxide compound material of construction and the recycle method of arsenic desorption liquid containing arsenic, concrete preparation process is as follows:
First, by arsenic concentration, be the arsenic desorption liquid that 15-30 mg/L, pH value are 10-12, with calcium oxide or magnesium oxide absorb, enrichment.The solid-liquid contact mode absorb, enrichment process adopting can be and is uniformly mixed or fixed bed contact, and enrichment time is 24-48 h.Secondly, by the silicon oxide layer of the coated inertia of certain solution ratio, toward the tetraethoxy ethanolic soln that adds successively the ammoniacal liquor of 4-6 times of volume ethanol, 1/3-1/2 volume and the 50-70% of 100:15 volume in the calcium oxide of 7-9 wt% or magnesium oxide aqeous suspension, stir 10-20 h, after washing, under 60-90 ° of C, be dried 6-12 h.Finally, the multivariant oxide powder of acquisition is suppressed with the mould of different length-to-diameter ratios, at 800-1100 ° of C sintering, obtained final block material of construction.
The described preparation of oxide compound material of construction and the recycle method of arsenic desorption liquid containing arsenic, is characterized in that the absorption of arsenic element, enrichment process, the arsonium ion of every gram of curable 1.2-2 mg of basic oxide.
The described preparation of oxide compound material of construction and the recycle method of arsenic desorption liquid containing arsenic, it is characterized in that, this preparation and arsenic are recycled process, and the raw material adopting has: calcium oxide, magnesium oxide, tetraethoxy, dehydrated alcohol, ammoniacal liquor and secondary deionized water.
The described preparation of oxide compound material of construction and the recycle method of arsenic desorption liquid containing arsenic, it is characterized in that, the multivariant oxide obtaining also can be toward wherein adding other oxide component, can obtain the material of construction of calcium base, magnesium base, or mix other raw materials as a kind of raw material, be prepared into the material of construction such as cement, glass.
Principle of design of the present invention: basic oxide (calcium oxide, magnesium oxide) can absorb the arsonium ion in the aqueous solution, to play the object of enriching and recovering.But, containing waste material oxidizing roasting meeting under 600-850 ° of C of arsenic, make wherein more than 40% arsenic volatilization, cause secondary pollution.Adopt to absorb enrichment, inertia is coated and the technical process of compacting sintering, what make that arsenic element can be stable is wrapped in multivariant oxide material, has avoided the secondary pollution of arsenic element, obtains the multivariant oxide material of construction of calcium base, magnesium base simultaneously.
The present invention has following beneficial effect: it passes through to absorb enrichment, inertia is coated and the technical process of compacting sintering, can be on the basis of recycling of realizing arsenic desorption liquid, obtain a kind of multivariant oxide material containing arsenic, what obtain can be directly as material of construction containing arsenic oxide material, also can be used as the material of construction that a kind of raw material preparation meets different demands, solved the difficult problem that arsenic desorption liquid is difficult to enrichment, recycling, an arsenic secondary pollution difficult problem of particularly bringing containing arsenic multivariant oxide waste residue simultaneously.
Accompanying drawing explanation:
Fig. 1 is the enrichment of arsenic desorption liquid, recyclability figure in the embodiment of the present invention 1 and 2;
Fig. 2 is the TEM photo of the coated rear powdered material of inertia in the embodiment of the present invention 1;
Fig. 3 is the EDS result of the coated rear powdered material of inertia in the embodiment of the present invention 1;
Fig. 4 is the TEM photo of inertia after coated in the embodiment of the present invention 2;
Fig. 5 is the high resolution TEM photo of inertia after coated in the embodiment of the present invention 2;
Fig. 6 contains the resistance to compression curve of the oxide compound material of construction of arsenic in the embodiment of the present invention 1 and 2.
Claims (9)
1. the preparation of oxide compound material of construction and the recycle of arsenic desorption liquid containing arsenic, after it is characterized in that basic oxide absorb the arsonium ion in enrichment desorption liquid, the silicon oxide layer of coated inertia, thereby obtain stable multivariant oxide material, by the material of acquisition suppress, sintering processes obtains final material of construction.
2. a kind of preparation of oxide compound material of construction and the recycle of arsenic desorption liquid containing arsenic according to claim 1, is characterized in that the described oxide compound material of construction containing arsenic, and basic oxide used can be calcium oxide, magnesium oxide.
3. a kind of preparation of oxide compound material of construction and recycle of arsenic desorption liquid containing arsenic according to claim 1, it is characterized in that the described oxide compound material of construction containing arsenic, precipitation after the arsonium ion absorbing in enrichment desorption liquid, by the method for the silicon oxide layer of coated inertia, is obtained to the multivariant oxide material of stable in properties.
4. a kind of preparation of oxide compound material of construction and recycle of arsenic desorption liquid containing arsenic according to claim 1, it is characterized in that the described oxide compound material of construction containing arsenic, the multivariant oxide material of coated inertia silicon oxide layer is passed through to simple compacting, sintering, can obtain the material of construction of the above intensity of intensity 40 MPa, can, directly as a kind of material of construction, also can be used as the material of construction that a kind of raw material preparation meets different demands.
5. a kind of preparation of oxide compound material of construction and recycle of arsenic desorption liquid containing arsenic according to claim 1, it is characterized in that enrichment, inertia are coated, the technical process of compacting sintering by absorbing, can, on the basis of recycling of realizing arsenic desorption liquid, obtain a kind of multivariant oxide material of construction containing arsenic.
6. a kind of preparation of oxide compound material of construction and recycle of arsenic desorption liquid containing arsenic according to claim 5, it is characterized in that concrete preparation process is as follows: by arsenic concentration, be first 15-30 mg/L, pH value is the arsenic desorption liquid of 10-12, with calcium oxide or magnesium oxide, absorb, enrichment, absorb, the solid-liquid contact mode that enrichment process adopts can be and is uniformly mixed or fixed bed contact, enrichment time is 24-48 h, secondly, by the silicon oxide layer of the coated inertia of certain solution ratio, in the calcium oxide of 7-9 wt% or magnesium oxide aqeous suspension, add successively 4-6 times of volume ethanol, the tetraethoxy ethanolic soln of the 50-70% of the ammoniacal liquor of 1/3-1/2 volume and 100:15 volume, stir 10-20 h, after washing, under 60-90 ° of C, be dried 6-12 h, finally, the multivariant oxide powder of acquisition is suppressed with the mould of different length-to-diameter ratios, at 800-1100 ° of C sintering, obtain final block material of construction.
7. a kind of preparation of oxide compound material of construction and recycle of arsenic desorption liquid containing arsenic according to claim 6, is characterized in that absorption, the enrichment process of arsenic element, the arsonium ion of every gram of curable 1.2-2 mg of basic oxide.
8. a kind of preparation of oxide compound material of construction and recycle of arsenic desorption liquid containing arsenic according to claim 6, it is characterized in that this described preparation and arsenic recycling process, the raw material adopting has: calcium oxide, magnesium oxide, tetraethoxy, dehydrated alcohol, ammoniacal liquor and secondary deionized water.
9. a kind of preparation of oxide compound material of construction and recycle of arsenic desorption liquid containing arsenic according to claim 6, the multivariant oxide that it is characterized in that described acquisition also can be toward wherein adding other oxide component, can obtain the material of construction of calcium base, magnesium base, or mix other raw materials as a kind of raw material, be prepared into the material of construction such as cement, glass.
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|---|---|---|---|---|
| CN1041787A (en) * | 1988-10-11 | 1990-05-02 | 中南工业大学 | The treatment process of antimony sulfide ore of high lead and arsenic content |
| CN1095648A (en) * | 1992-09-22 | 1994-11-30 | 詹姆斯·汉密尔顿·凯尔 | The composition and the method that are used for waste disposal |
| CN1312348A (en) * | 2000-03-08 | 2001-09-12 | 法国石油公司 | Method for removing arsine in condition of existing of absorbent containing partial prevulcanized lead oxide |
| CN1978992A (en) * | 2005-12-02 | 2007-06-13 | 中国科学院地理科学与资源研究所 | Safety burning method for matter containing arsenic |
| CN102513350A (en) * | 2011-12-23 | 2012-06-27 | 盛世绍普(天津)环保科技有限公司 | Composition used for treating soil arsenic pollution, and application method thereof |
| CN102634672A (en) * | 2012-04-17 | 2012-08-15 | 金川集团有限公司 | Method for treating arsenic-containing waste copper slag |
-
2014
- 2014-06-30 CN CN201410300120.3A patent/CN104072093A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1041787A (en) * | 1988-10-11 | 1990-05-02 | 中南工业大学 | The treatment process of antimony sulfide ore of high lead and arsenic content |
| CN1095648A (en) * | 1992-09-22 | 1994-11-30 | 詹姆斯·汉密尔顿·凯尔 | The composition and the method that are used for waste disposal |
| CN1312348A (en) * | 2000-03-08 | 2001-09-12 | 法国石油公司 | Method for removing arsine in condition of existing of absorbent containing partial prevulcanized lead oxide |
| CN1978992A (en) * | 2005-12-02 | 2007-06-13 | 中国科学院地理科学与资源研究所 | Safety burning method for matter containing arsenic |
| CN102513350A (en) * | 2011-12-23 | 2012-06-27 | 盛世绍普(天津)环保科技有限公司 | Composition used for treating soil arsenic pollution, and application method thereof |
| CN102634672A (en) * | 2012-04-17 | 2012-08-15 | 金川集团有限公司 | Method for treating arsenic-containing waste copper slag |
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Application publication date: 20141001 |